#include <iostream>
    using namespace std;
     
    struct Yoba1 {
    	long long i;
    };
     
    struct Yoba2 {
    	long long i;
    	long long& j = i;
    };
     
    int main() {
    	std::cout << sizeof(long long*) << std::endl;
    	std::cout << sizeof(Yoba1) << std::endl;
    	std::cout << sizeof(Yoba2) << std::endl;
    	return 0;
    }